The answer for this question is 79 :)
The sign would be negative
Answer:
option 3
Step-by-step explanation:
divide the diameter by 2 to get the radius.
pi×r^2
3.14×42^2=5538.96 km^2
I would say c or d. but since its multiple choice, its ok to guess sometimes.
Answer:
C) 3*10^6
Step-by-step explanation:
Divide the two numbers:
(6*10^-2)/(2*10^-8)=6/2*(10^-2/10^-8)=3*10^(-2-(-8))=3*10^(-2+8)=3*10^6
So C is correct
